What is the ideal temperature for domestic hot water?

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These recommendations state hot water must be stored at 60°C inside the water heater by ensuring, at least once a day, the temperature reaches at least 60°C in the entire tank. Moreover, water should reach the tap at a temperature of at least 50°C.

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Simply so, does turning up water heater make hot water last longer?

Turning up the water heater temperature makes hot water last longer as the desired temperature is reached by using less hot water and more cold water. The recommended maximum temperature should be 120 °F. Hotter water poses risks to users and the water heater and increases energy bills.

Beside above, is 140 too hot for water heater? 120 degrees Fahrenheit is the safety recommendation against scalding, but 140° is the common default setting. Most experts agree that anything below 120 degrees creates a risk for bacteria to develop inside your water heater from stagnant water, such as legionella that causes Legionnaire’s disease.

Hereof, what is the most economical temperature to set your water heater at?

Some manufacturers factory-set their water heaters at 120°F (49°C), while others are set to a default 140°F (60°C). The Department of Energy recommends setting a water heater to 120 degrees to save on energy costs, and the Consumer Product Safety Commission advises the same temperature to prevent scalding.

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